A European insect. The curious projections at the side, near the head, of the female, and the arrangement of the male puparia above mentioned, sufficiently distinguish this species. 11. Diaspis rosæ, Sandberg. _Aspidiotus rosæ_, Sandberg; Abhand., priv. Boh., No. 6, p. 317. _Diaspis rosæ_, Signoret, loc. cit., 1869, p. 441. N.Z. Trans., Vol. XI., 1878, p. 201. (Plate IV., Fig. 6.) Female puparium nearly circular, white, often aggregated in masses; diameter, about 1/12in. Pellicles, marginal. Male puparium white, elongated, carinated; length, about 1/20in. Adult female deep-red in colour, elongated, the body deeply segmented. Cephalic region very large, smooth. On each segment of the body several spiny hairs. Abdomen ending in two conspicuous lobes with a depression between them, and some spiny hairs. Five groups of spinnerets, but the lateral groups are almost continuous; uppermost group with about twenty orifices; in the lateral groups, fifty to sixty orifices. No single spinnerets. Adult male orange-red in colour; antennæ ten-jointed, with several hairs on all but the first two joints; feet slender, hairy; digitules, fine hairs. The spike is somewhat long. Habitat--On rose-trees, Governor's Bay, Canterbury-Napier. A European species, stated by Mr. Comstock to attack, in America, blackberries and raspberries, besides the rose. The deep-red colour and abnormally-large cephalic segment of this insect distinguish it from all others. 12. Diaspis santali, Maskell. N.Z. Trans., Vol. XVI., 1883, p. 122. (Plate IV., Fig. 7.) Female puparium yellowish-grey in colour, sometimes with a greenish tinge; outline oval; very convex; pellicles at one end, black, inconspicuous; length of puparium, about 1/15in. Male puparium white, elongated, carinated; pellicle, black; length, about 1/25in. Adult female orange-red in colour, peg-top shaped; the abdominal segment very small as compared with the rest of the body, and the two next segments overlap it. Abdomen ending in two conspicuous, prominent, median lobes, and at each side of them two semi-circular depressions: several branched and serrated hairs in the region of these lobes. There are no groups of spinnerets. There is no wide depression of the edge between the median lobes. Adult male unknown. Habitat--On _Santalum cunninghamii_ (Maire), Te Aute, Hawke's Bay; and on pear, plum, and other fruit-trees at Whangarei, having probably spread from native plants. The carinated male puparium distinguishes this species from Aspidiotus. The absence of spinnerets is curious. Genus: MYTILASPIS, Targioni-Tozzetti.